Once upon a time, Amazon.com loved moms. Its free "Amazon Mom" service offered the same free two-day shipping as Amazon Prime, plus heaps of extra benefits for anyone who thought to ask for them (even dads and cousins.) But no more: Mothers' day is over.

Kimberly-Clark and Procter & Gamble -- America's diaper duopolists -- are making good on their threats to increase prices on diapers and baby wipes. They're putting the pinch on parents, and making it hard to keep up with the rising cost of bringing up baby.